It may, at times, seem like the last thing the world needs is another Irish memoir or another Kennedy book of any kind. Nevertheless, here is another one, entitled "Symptoms of Withdrawal" by Christopher Kennedy Lawford, son of actor Peter Lawford and JFK's sister Patricia Kennedy. It must be said, however, that Lawford provides an amazingly vivid glimpse into a world of both Washington and Hollywood insiders. Lawford grew up with the wealthy and powerful but could not avoid falling into a dark hole of drug and alcohol addiction. Now sober, Lawford - an actor and substance abuse activist - can add author to his list of accomplishments. ($25.95 / 389 pages / Morrow)